Ponnada Swaroopa R, Ganugapanta Vivek R, Perumalla Kiran K, Naqeed Mohammed A, Harini T, Mandaloju Shiva Praasad
Department of Orthodontics, Panineeya Mahavidyalaya Institute of Dental Sciences, Hyderabad, Telangana, India.
Department of Orthodontics, Narayana Dental College, Nellore, Andhra Pradesh, India.
J Pharm Bioallied Sci. 2020 Aug;12(Suppl 1):S161-S167. doi: 10.4103/jpbs.JPBS_49_20. Epub 2020 Aug 28.
A two-dimensional cephalometric study was carried out to assess the airway among individuals with Class I and Class II skeletal base.
Class II subjects were further categorized into horizontal and vertical growers and average growth patterns to check the possible relationship between the facial skeleton and pharyngeal airway. Lateral cephalograms of 150 subjects were obtained using standard protocol in natural head position (NHP). Nasopharyngeal and oropharyngeal linear, and angular and nasopharyngeal area measurements were obtained using standardized tracing technique. Analysis of variance (ANOVA), level of significance, and Turkey's test were performed to assess the correlation between skeletal pattern of the individual and airway dimension. Gender discrimination was assessed using independent sample test.
In linear measurements, significant differences were observed among upper pharynx (0.039), adenoid tissue 1 (0.036), and adenoid tissue 2 (0.01). In angular measurements, differences were observed with angle of nasopharynx (0.008). The nasopharyngeal area measurements were also associated with significant difference (0.038) with Class II vertical growers less than those with Class I average and Class II horizontal groups.
Class II vertical growers had significantly reduced nasopharyngeal airways.
进行二维头影测量研究，以评估I类和II类骨骼型个体的气道情况。
II类受试者进一步分为水平生长型、垂直生长型和平均生长型，以检查面部骨骼与咽气道之间可能存在的关系。采用标准方案在自然头位（NHP）下获取150名受试者的侧位头影图。使用标准化描记技术获得鼻咽部和口咽部的线性、角度及鼻咽部面积测量值。进行方差分析（ANOVA）、显著性水平分析和土耳其检验，以评估个体骨骼型与气道维度之间的相关性。使用独立样本检验评估性别差异。
在线性测量中，上咽部（0.039）、腺样体组织1（0.036）和腺样体组织2（0.01）之间观察到显著差异。在角度测量中，鼻咽角（0.008）存在差异。鼻咽部面积测量也存在显著差异（0.038），II类垂直生长型受试者的鼻咽部面积小于I类平均生长型和II类水平生长型受试者。
II类垂直生长型受试者的鼻咽气道明显变窄。
